""ET TROJAN APT/FamousSparrow CnC Domain in DNS Lookup (credits.offices-analytics .com)""

SID: 2034016

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_09_23, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_09_23

Reference:

Protocol: udp

Source Network: $HOME_NET

Source Port: any

Destination Network: any

Destination Port: 53

Flow:

Contents:

  • Value: "|01|" Depth: 1 Offset: 2

  • Value: "|00 01 00 00 00 00 00|"

  • Value: "|07|credits|11|offices-analytics|03|com|00|"

Within: 31

PCRE:

Special Options:

  • nocase

  • fast_pattern

source